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Generac XT8500EFI vs XT8000EFI - The Differences

Further down the page, you'll find some explanations regarding the key similarities and differences between the Generac XT8000EFI and the Generac XT8500EFI.

But before checking out explanations regarding their power, portability, and features, here's a table that summarizes the main pros of each of these 2 generators:

Generac XT8000EFIGenerac XT8500EFI
Generac XT8000EFIGenerac XT8500EFI
  • Higher runtime
  • Lower fuel consumption
  • Higher running watts
  • Less bulky
  • Lighter

As the XT8000EFI and the XT8500EFI are both Generac generators, they benefit from the same level of quality and attention to detail.

Power Comparison

The following charts are provided to show you at a glance how the main specs of the Generac XT8000EFI compare to the Generac XT8500EFI.

  • Power: With a running wattage of 8500 W, the Generac XT8500EFI will allow to power more appliances and tools than the 8000 running watts of the Generac XT8000EFI. However, as the 2 generators have the same starting watts (10000 W), they will both give you the same boost needed to start the motor of your most demanding appliances.
  • Runtime: When running at a 50% load, the XT8000EFI enjoys a higher approximate runtime on a full tank than the XT8500EFI. It can deliver power for around 9.5 hours, whereas the XT8500EFI will be able to power your appliances for around 9 hours.
  • Fuel Efficiency: With a gasoline consumption at 50% load of 0.89 GPH (gallon per hour), the XT8500EFI is less fuel efficient than the Generac XT8000EFI with its 0.84 GPH. The latter will therefore be more economic to run than the former.
  • THD: Both generators offer a low THD (<5% for the Generac XT8000EFI and <5% for the Generac XT8500EFI) and are therefore perfectly suitable to safely power your sensitive electronic devices.

Portability Comparison

  • Bulkiness: With dimensions of L31.4" x W20.5" x H26.5", the Generac XT8500EFI offers a much more compact experience of power generation than the Generac XT8000EFI and its L31.8" x W24.7" x H27.1".
  • Weight: With a weight of 214 lbs, the XT8500EFI is slightly less heavy than the XT8000EFI (which weighs 216.1 lbs).
  • Portability: Both products benefit from a wheel kit, which greatly enhances their maneuverability. Both offer a folding handle, which improves your grip when you wish to move them around.

Feature Comparison

  • Starting System: Both devices can be started either via a pull-start mechanism or an electric starter.
  • EFI: Both units benefit from an Electronic Fuel Injection (EFI) system, which enhances their engines' reliability, lowers their fuel consumption, improves their startup, reduces their servicing, boosts their stale fuel resistance, and offers better altitude adaptability.
  • Outlets: The XT8000EFI and the XT8500EFI both offer 5 AC outlets. They also both feature GFCI outlets. In addition, it is worth noting that they can both produce either 120 or 240V. For more detailed information regarding all their respective receptacles, refer to the XT8000EFI's and the XT8500EFI's product pages.
  • Data Center & Fuel Gauge: Each of these 2 portable generators is equipped with a data center allowing you to conveniently monitor some aspects of the power output. Besides that, these 2 products are fitted with a fuel gauge allowing to see their fuel level at a glance.

TL;DR

Generac XT8000EFIGenerac XT8500EFI
Generac XT8000EFIGenerac XT8500EFI
  • Higher runtime
  • Lower fuel consumption
  • Higher running watts
  • Less bulky
  • Lighter
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